Actually I can compare, I was running the German RON 98 which is the American 95. I am now running the RON 95 which is the American standard 91. I did the research. Just to reaffirm, I looked behind my wife's fuel door and it has both standards noted with the Minimum of 95 RON or 91 AKI.
Someone correct me if I'm wrong, but isn't 91 AKI the highest octane pump gas you can get in California?
Hmm ? I just got 5 gal of 76 unleaded 100 octane for my bike this weekend right here in San Jose California and regularly get it at Laguna Seca in Montery CA?. Some information on 76 fuels: Unleaded Race/Racing Fuel at the Pump in California Octane Explanation Racing Gasoline Comparisons